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公开(公告)号：US20240181739A1
公开(公告)日：2024-06-06
申请号：US18285619
申请日：2022-04-08
Applicant: PulPac AB
Inventor： Olle Högblom , Ove Larsson , Martin Ljungberg , Edward Guidotti , Björn Arlerot , Patrik Larsson
CPC classification number: B31F1/0077 , B30B1/16 , B30B11/005 , B31B50/006 , B31B50/102 , B31B50/59
Abstract: A product forming unit for manufacturing non-flat cellulose products from an air-formed cellulose blank structure (2). The product forming unit includes a blank dry-forming module with a moveable forming wire, a toggle pressing module with a toggle press and a forming mold, and an electronic control system operatively connected to the forming wire and the toggle press. The blank dry-forming module is configured for air-forming the cellulose blank structure onto the forming wire. The toggle press includes a pressing member movably arranged in a pressing direction, a toggle-mechanism drivingly connected to the pressing member, and a pressing actuator arrangement drivingly connected to the toggle-mechanism. The forming mold includes a moveable first mold part attached to the pressing member and a second mold part. The electronic control system is configured for controlling operation of the pressing actuator arrangement for performing pressing operations, which involves driving the pressing member in the pressing direction by the toggle-mechanism, and thereby forming the non-flat cellulose product from the air-formed cellulose blank structure by pressing the first mold part against the second mold part. The electronic control system is configured for intermittently feeding the forming wire between subsequent pressing operations.
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Patent Agency Ranking
公开(公告)号：US12208591B2
公开(公告)日：2025-01-28
申请号：US18034563
申请日：2021-10-12
Applicant: PULPAC AB
Inventor： Martin Ljungberg , Mathias Bergfjord
Abstract: A method and system for edge-forming cellulose products from an air-formed cellulose blank structure. The system comprises a first mould part having an edge-forming device with a protruding element configured for compacting and separating fibres of the cellulose blank structure and a second mould part arranged for cooperating with each other. The edge-forming device is movably arranged in relation to a base structure of the first mould part, and is adapted for interacting with a pressure member arranged in the base structure. The method includes the steps: providing the air-formed cellulose blank structure, and forming a compacted edge structure of the cellulose products by separating fibres of the cellulose blank structure with the protruding element, applying an edge-forming temperature, and compacting the cellulose blank structure by applying an edge-forming pressure onto the cellulose blank structure between the protruding element and the second mould part.
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3.发明公开公开(公告)号：US20230356494A1
公开(公告)日：2023-11-09
申请号：US17795795
申请日：2021-02-02
Applicant: PulPac AB
Inventor： Martin Ljungberg , Björn Arlerot
CPC classification number: B31D5/02 , B31F1/0077 , D21J3/00 , B29C43/003 , B29C43/10 , B29C43/36 , B29C43/52 , B29C33/22 , B31B50/592
Abstract: A forming mould system (3) for forming a cellulose product (1) from an air-formed cellulose blank structure (2), where the forming mould system (3) comprises a first mould part (4a) and a second mould part (4b). The first mould part (4a) and the second mould part (4b) are configured for moving in relation to each other in a pressing direction (DP). The second mould part (4b) comprises a forming cavity section (5) and an inlet section (6), where the inlet section (6) is arranged in connection to the forming cavity section (5) and configured for facilitating displacement of the cellulose blank structure (2) into a forming cavity (5a) of the forming cavity section (5). The inlet section (6) comprises a transition surface (6a) defining an inlet opening (6b), and the inlet opening (6b) is having a tapered configuration towards the forming cavity (5a). The disclosure further relates to a method for forming a cellulose product (1) from an air-formed cellulose blank structure (2) in a forming mould system (3).
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4.发明公开公开(公告)号：US20240183112A1
公开(公告)日：2024-06-06
申请号：US18285461
申请日：2021-04-15
Applicant: PulPac AB
Inventor： Ove Larsson , Olle Högblom , Martin Ljungberg
IPC: D21J5/00 , B65H23/188
CPC classification number: D21J5/00 , B65H23/1882 , B65H2301/543 , B65H2701/177 , B65H2801/84
Abstract: A method for manufacturing non-flat cellulose products from an air-formed cellulose blank structure in a product forming unit. The product forming unit includes a buffering module and a pressing module including one or more forming molds. The method includes providing the cellulose blank structure and feeding the cellulose blank structure to the buffering module; buffering the cellulose blank structure in the buffering module, and feeding the cellulose blank structure from the buffering module to the pressing module; forming cellulose products from the cellulose blank structure in the one or more forming molds by heating the cellulose blank structure to a forming temperature, and pressing the cellulose blank structure with a forming pressure. The cellulose blank structure is continuously fed to the buffering module in a first feeding direction, and intermittently fed from the buffering module in a second feeding direction, wherein the second feeding direction differs from the first feeding direction.
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公开(公告)号：US20240181740A1
公开(公告)日：2024-06-06
申请号：US18285623
申请日：2022-04-08
Applicant: PuLPac Ab
Inventor： Olle Högblom , Ove Larsson , Martin Ljungberg , Edward Guidotti , Björn Arlerot , Partik Larsson
IPC: B31F1/00 , B27N1/00 , B27N3/00 , B27N3/04 , B27N3/18 , B27N5/00 , B30B1/10 , B30B9/28 , B30B15/30 , B31B50/00 , B31B50/10 , B31B50/59
CPC classification number: B31F1/0077 , B27N1/00 , B27N3/007 , B27N3/04 , B27N3/18 , B27N5/00 , B30B1/10 , B30B9/28 , B30B15/30 , B31B50/006 , B31B50/102 , B31B50/59
Abstract: Method for dry-forming cellulose products from a cellulose blank structure in a product forming unit. The product forming unit includes a blank dry-forming module and a pressing module. The cellulose blank structure is air-formed in the blank dry-forming module onto a forming wire. The pressing module includes one or more forming molds for forming the cellulose products from the cellulose blank structure in a pressing operation. The method includes arranging the forming wire in a stationary mode during the pressing operation.
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公开(公告)号：US20240009950A1
公开(公告)日：2024-01-11
申请号：US18034563
申请日：2021-10-12
Applicant: PULPAC AB
Inventor： Martin Ljungberg , Mathias Bergfjord
CPC classification number: B31B50/142 , B31B50/22 , B31D5/02
Abstract: A method and system for edge-forming cellulose products from an air-formed cellulose blank structure. The system comprises a first mould part having an edge-forming device with a protruding element configured for compacting and separating fibres of the cellulose blank structure and a second mould part arranged for cooperating with each other. The edge-forming device is movably arranged in relation to a base structure of the first mould part, and is adapted for interacting with a pressure member arranged in the base structure. The method includes the steps: providing the air-formed cellulose blank structure, and forming a compacted edge structure of the cellulose products by separating fibres of the cellulose blank structure with the protruding element, applying an edge-forming temperature, and compacting the cellulose blank structure by applying an edge-forming pressure onto the cellulose blank structure between the protruding element and the second mould part.
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